It may all be irrelevant anyway.If the players were happy and felt their current situation was better than any alternatives (distance, cost, coach, teammates, competition, etc.) they would have just swatted away any flirtations.
Happens all the time.
If the players felt the new opportunity would be more likely to help them fulfill their goals or needs (again... distance, cost, coach, teammates, competition, etc.), can't blame them for exploring it.
Also happens all the time.
Welcome to high level youth soccer.
